1974

7.3

2017

8.0

1978

5.9

1996

5.0

1966

6.1

2012

3.8

2017

6.0

2004

5.2

2018

10.0

1986

6.6

1981

5.8

1992

6.2

2023

7.0

9.4

2008

5.8

2011

7.5